I got a $35 generic no-brand panel from AE and another one from amazon supossedly higher end: https://www.amazon.com/X-DRAGON-Efficency-Technology-Smartphones-Foldable/dp/B00NGKPX4Y
They have the same performance and never got more than 10W from either. The one from AE has very unstable voltage and will continue to supply power even when it is below 4.5V. The Xdragon panel has better stability but everything is coded DCP and it won’t handle a true 2A load either.